<html>
<!--
- * Jalview - A Sequence Alignment Editor and Viewer (Version 2.5)
- * Copyright (C) 2010 J Procter, AM Waterhouse, G Barton, M Clamp, S Searle
+ * Jalview - A Sequence Alignment Editor and Viewer (Version 2.7)
+ * Copyright (C) 2011 J Procter, AM Waterhouse, J Engelhardt, LM Lui, G Barton, M Clamp, S Searle
*
* This file is part of Jalview.
*
*
* You should have received a copy of the GNU General Public License along with Jalview. If not, see <http://www.gnu.org/licenses/>.
-->
+<head>
+<title>Removing Redundancy</title>
+</head>
+<body>
+<p><strong>Removing redundancy</strong></p>
+<p>Selecting the option in the Alignment window's <strong>Edit</strong>
+menu or pressing <strong>'CONTROL+D'</strong> brings up a dialog box
+asking you to select a threshold. If the percentage identity between the
+aligned positions of any two sequences in the visible alignment exceeds
+this value, the shorter sequence is discarded.<br><em>Note:</em> The redundancy
+calculation is done when the dialog box is opened. For large numbers
+of sequences this can take a long time as all pairs have to be compared.
+</p>
+</body>
+</html>